package chapter03;

public class example02 {
    static class Student{
        String name;
        int age;
        void read() {
            System.out.println("大家好,我是"+name+",年龄"+age);
        }
    }
    static class Example02{
        public static void main(String[] args) {
            Student stu1 = new Student();
            Student stu2 = null;
            stu2 = stu1;
            stu1.name = "小明";
            stu1.age = 20;
            stu2.age = 50;
            stu1.read();
            stu2.read();
        }
    }
}
